©Techno Tone

2006

Linksys WRT54G /GS Resources

This device acts as a wired router and wireless access point. It's great for distributing a cable broadband connection to a LAN made up of wired and wireless devices. What's really cool about this unit is that it has a little ARM based Linux server in it. This being so, it meant that the source code was by GNU licensing agreement, which obliged it to be openly released. So it was wrestled out of Linksys and re-engineered. This opened up a whole load of extra features and allows it, once re-flashed, to act like a router which would have cost three times the price.

Once Linksys saw this was happening, they closed off this avenue of pleasure by changing the architecture. Versions 5 onwards of the WRT54G and WRT54GS cannot be flashed with the full versions of the third party software. Make sure that you get the right version if you want one which you can play about with.

Version is determined by decoding the first four letters of the serial number which can be found on the underside of the unit. See Wiki

RP-TNC (RTN)

Note that the antenna sockets and antennas on these devices is reverse TNC. This was done to conform with FCC regulations which prohibit the possibility of the end user adding a higher gain antenna. Reverse TNC is like a normal TNC only the gender is reversed, the WRT has the male centre pin while its antenna has the female socket. This is an annoying piece of gender re-assignment but it can be circumvented. You can buy an inter-series adaptor to take it over to an 'N' connector, or and reverse TNC connectors can be bought to make up a pigtail.

RFlow Collector

I couldn't find any clear instructions in English as to how to install and use this so I've translated it myself from the German.

RFlow Collector is an highly attractive graphical Traffic Monitoring and Management Tool. It works in conjunction with the DD-WRT Firmware.

Installation and configuration

Extract the zip file to a directory of your choice.

Open RFlow and click on 'Network'. The IP configuration dialogue appears. Enter your local subnet in the left hand column and the far opposite column will be calculated for you (typically 192.168.1).

In the DD-WRT web based interface, activate RFlow und MACupd

Earlier versions - Administration -> Management : Enable RFlow and MACupd

Version 23 - Administration -> Service : Enable RFlow and MACupd

Enter the following values


Field		Value

RFlow IP	=	IP of your win32 PC running RFlow Collector
RFlowPort	=	2055
MACUdpIP	=	IP of your win32 PC running RFlow Collector
MACudpPort	=	2056
MACudpIntervall	=	10 (every 10 sec your screen will refresh)

    RFlow IP = IP of your win32 PC running RFlow Collector
    RFlowPort= 2055
    MACUdpIP = IP of your win32 PC running RFlow Collector
    MACudpPort= 2056
    MACudpIntervall = 10 (every 10 sec your screen will refresh)

save changes

To confirm correct installation, RFlowCollector should show that it is receiving MACudp or RFlow packets
It will allow you to watch a complete network of WRT54G DD-WRT routers.
it was developed by xx to reveal all clients on wrt54g (Minori)
at next i want to write a small intor?? for using this program.

Danach sollte man diverse Daten wie Upload, Download, MAC, IP, usw. der verbundenen Clients in lauter hübschen Balkendiagrammen bewundern können, v.a. im Protokol-Button. Daten werden natürlich nur gesammelt und visualisiert solange der RFlow Collector läuft und Traffic über den WRT fließt. Gespeichert werden die jeweiligen Datenmengen einer Session auch nicht, es sei denn man exportiert sie in eine MySQL-Datenbank.

Version 3 is the current release of RFlow.

Using a pair of WRT54Gs for point to point linking

http://windsurf.mediaforte.com/wifi/WIFI_Router.html